Guys, does anyone know how I can get hdmi audio from my newly purchased MSI Radeon R4350 512MB PCI-E x16 HDMI DVI VGA Graphics Card? Video works seamlessly in Peppermint P7. I am trying to set up Kodi tv with exodus and drive it into my TV from my old Optiplex-740. I got the graphics card for £12 off of ebay and it would be great to make it work. Thanks in advance, Dave

What sound server are you using?

It's in the sound config. You have to pretend your video card is a second sound card. Default isn't good enough any more. It's a while since I struggled with this myself but that was how I did it. I was using alsa, and it was magic in alsa.conf or somesuch.

I have solved the problem by switching off the Analogue Stereo Duplex in the on board sound device and it worked like magic!

Great. Mark it solved then. Others search for solved threads.

In pulseaudio, turn off all the things you don't want to use. Which you probably did. Otherwise HDMI output isn't a default so you have to override it.

$ cat /proc/asound/cards

$ egrep -r -i hdmi /proc/asound/*

A lot of time's it'll be something like hw:1,3 in terms of alsa naming conventions. Depending on which index was given to the one of probably many cards you want to use. Motherboard, video card, webcam, modems, all probably have some sound / DSP component to them.

In my current setup:

/proc/asound/card0/pcm3p/info:id: HDMI 0

Implies hw:0,3 where card0 is the 0 and pcm3p is the 3. If you're just using alsa you can make that default (for those apps that play nice) by the following .asoundrc file.

FILE: $HOME/.asoundrc